Brody Jenner Tight-Lipped About Kisses from L.C.

Fresh off his birthday celebration in Las Vegas, Brody Jenner says there's more to what happened with Hills costar and former flameLauren Conrad.

"There was a lot of things they didn't show," Jenner said of the multiple kisses he shared with Conrad when she surprised him at the party, which was the focus of the show's latest episode. "What happens in Vegas stays in Vegas."

Jenner remained coy about the possibility of a rekindled romance at Tuesday night's opening of the SKY360 Lounge by Delta in New York City. "I talk to her every day, it's just like any other friend," he told PEOPLE.

It was just one year ago that the reality stars were an official item. And, in March, Conrad told PEOPLE she remains friends with most of her exes – Jenner included.